In the first step of glycolysis,
Energy is stored in the form of ATP and NADH
Glucose molecule is modified in a form that can be split later into 2-3 carbon compound
Energy is released
Both a and c
The first part of the glycolysis pathway traps the glucose molecule in the cell and uses energy to modify it so that the six-carbon sugar molecule can be split evenly into two three-carbon molecules. This is the energy-requiring step.
Hence, the correct answer is b.